:root{--color-bg-primary: #0a0a0f;--color-bg-secondary: #161621;--color-bg-accent: #1e1e2e;--color-text-primary: #ededed;--color-text-secondary: #a1a1aa;--color-accent-primary: #7c3aed;--color-accent-secondary: #3b82f6;--font-family-base: "Inter", system-ui, -apple-system, sans-serif;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 3rem;--border-radius-md: 8px;--border-radius-lg: 16px;--transition-fast: .2s ease}*,*:before,*:after{box-sizing:border-box}body{margin:0;padding:0;font-family:var(--font-family-base);background-color:var(--color-bg-primary);color:var(--color-text-primary);-webkit-font-smoothing:antialiased;min-height:100vh}button{cursor:pointer;border:none;background:none;font-family:inherit}h1,h2,h3{margin:0;font-weight:600}#root{display:flex;flex-direction:column;height:100vh;isolation:isolate;overflow:hidden}.landing-page{height:100%;width:100%;flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;background:var(--color-bg-primary);position:relative;overflow:hidden;color:var(--color-text-primary)}.landing-bg-ambience{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60vw;height:60vw;background:radial-gradient(circle,var(--color-bg-accent) 0%,transparent 70%);z-index:0;pointer-events:none}.landing-logo{height:150px;max-width:90%;object-fit:contain;z-index:1;margin-bottom:1rem;filter:drop-shadow(0 0 30px var(--color-bg-accent))}.landing-tagline{color:var(--color-text-secondary);font-size:1.5rem;margin-top:1rem;margin-bottom:3rem;z-index:1;font-weight:300;text-align:center;padding:0 1rem}.landing-cta{padding:1rem 3rem;font-size:1.2rem;font-weight:600;background:var(--glass-bg);color:var(--color-text-primary);border:1px solid var(--color-border);border-radius:50px;cursor:pointer;z-index:1;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .3s ease;box-shadow:0 0 20px #0000001a;text-transform:uppercase;letter-spacing:.1em}.landing-cta:hover{transform:scale(1.05);border-color:var(--color-accent-primary)}.landing-cta:active{transform:scale(.95)}@media(max-width:768px){.landing-logo{height:100px}.landing-tagline{font-size:1.2rem;margin-bottom:2rem}.landing-cta{padding:.8rem 2rem;font-size:1rem}.landing-bg-ambience{width:100vw;height:100vw;opacity:.5}}:root{--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 3rem;--border-radius-sm: 4px;--border-radius-md: 8px;--border-radius-lg: 16px}body{margin:0;padding:0;font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--color-bg-primary);color:var(--color-text-primary);transition:background-color .3s ease,color .3s ease}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--color-bg-primary)}::-webkit-scrollbar-thumb{background:var(--color-accent-primary);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--color-accent-secondary)}.app-container{display:flex;flex-direction:column;align-items:center;width:100%;flex:1;height:100%;min-height:0;padding:var(--spacing-md);max-width:1400px;margin:0 auto;overflow:hidden;box-sizing:border-box}.app-header{flex-shrink:0;margin-bottom:var(--spacing-md);text-align:center}.app-title{font-size:2rem;color:var(--color-text-primary);margin:0;letter-spacing:-.05em;line-height:1.2}.main-content{width:100%;flex:1;min-height:0;display:flex;flex-direction:column;gap:var(--spacing-md);background:var(--color-bg-secondary);padding:var(--spacing-md);border-radius:var(--border-radius-lg);border:1px solid var(--color-border);box-shadow:0 4px 20px #0000001a}.controls-section{display:flex;flex-direction:row;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:center;flex-shrink:0;width:100%}.control-group{display:flex;gap:.25rem;padding:.25rem;background:var(--glass-bg);-webkit-backdrop-filter:blur(var(--glass-blur));backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--border-radius-md)}.audio-player{flex-grow:1;min-width:250px;padding:.5rem 1rem;background:var(--glass-bg);-webkit-backdrop-filter:blur(var(--glass-blur));backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--border-radius-md);display:flex;gap:1rem;align-items:center;justify-content:space-between}.play-button{padding:.5rem 1.5rem;background:var(--color-accent-primary);color:#fff;border-radius:var(--border-radius-sm);font-weight:600;transition:all .2s ease;text-transform:uppercase;font-size:.8rem;letter-spacing:.05em;border:none;cursor:pointer;white-space:nowrap}.play-button:hover:not(:disabled){filter:brightness(1.2)}.play-button:disabled{opacity:.5;cursor:not-allowed;background:#333}.spectrogram-container{flex:1;width:100%;min-height:0;background:#0a0a0f;border-radius:8px;position:relative;overflow:hidden;border:1px solid #333;display:flex;align-items:stretch;justify-content:center}.spectrogram-wrapper:hover{border-color:#7c3aed66!important}.empty-state{color:var(--color-text-secondary);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;width:100%;height:100%}.empty-state-icon{font-size:3rem;opacity:.2}.mode-button{padding:.4rem .8rem;border-radius:6px;background:transparent;color:var(--color-text-secondary);border:1px solid transparent;font-size:.8rem;transition:all .2s ease;cursor:pointer;white-space:nowrap}.mode-button:hover{background:#ffffff0d;color:var(--color-text-primary)}.mode-button.active{background:var(--color-bg-accent);color:var(--color-accent-primary);border-color:#7c3aed4d}.file-input-wrapper input{width:100%;max-width:200px}.main-nav{position:sticky;top:0;left:0;right:0;height:60px;background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border);z-index:1000;display:flex;justify-content:center;align-items:center;padding:0 var(--spacing-md)}.nav-container{width:100%;max-width:1400px;display:flex;justify-content:space-between;align-items:center}.nav-logo{font-size:1.2rem;font-weight:700;color:var(--color-text-primary);text-decoration:none;background:transparent;-webkit-background-clip:unset;background-clip:border-box;-webkit-text-fill-color:unset;z-index:1002}.nav-links{display:flex;gap:1.5rem;align-items:center}.nav-link{color:var(--color-text-secondary);text-decoration:none;font-size:.95rem;transition:all .2s ease;position:relative}.nav-link:hover{color:var(--color-text-primary)}.nav-link.active{color:var(--color-accent-primary)}.nav-link.active:after{content:"";position:absolute;bottom:-4px;left:0;right:0;height:2px;background:var(--color-accent-primary);border-radius:2px}.mobile-menu-toggle{display:none;font-size:1.5rem;color:var(--color-text-primary);background:none;border:none;cursor:pointer;z-index:1002;padding:.5rem}@media(max-width:768px){.main-nav{position:sticky;top:0;height:auto;min-height:60px;padding:.5rem var(--spacing-md);background:var(--color-bg-primary);border-bottom:1px solid var(--color-border)}.nav-container{flex-wrap:wrap}.mobile-menu-toggle{display:block;margin-left:auto}.nav-links{width:100%;display:flex;flex-direction:column;align-items:flex-start;gap:0;max-height:0;opacity:0;overflow:hidden;padding-top:0;padding-bottom:0;margin-top:0;border-top:1px solid transparent;transition:all .4s cubic-bezier(.4,0,.2,1);position:static;transform:none;background:transparent}.nav-links.open{max-height:500px;opacity:1;padding-top:1rem;padding-bottom:1rem;margin-top:.5rem;border-top-color:#ffffff0d;transform:none}.nav-link{font-size:1.1rem;width:100%;padding:.8rem 0;border-bottom:1px solid rgba(255,255,255,.03)}.theme-toggle{margin-left:0!important;margin-top:1rem;width:100%;justify-content:center;border-color:#ffffff1a;background:transparent;border:1px solid var(--color-border);color:var(--color-text-primary);display:flex;align-items:center;gap:.5rem}.app-container,.content-page{padding-top:0!important}}.theme-toggle{background:transparent;border:1px solid var(--color-border);color:var(--color-text-primary);padding:.4rem .8rem;border-radius:20px;cursor:pointer;font-size:.9rem;margin-left:1rem;transition:all .2s ease;display:flex;align-items:center;gap:.5rem}.content-page{padding-top:80px;overflow-y:auto!important;height:auto!important;min-height:100vh;display:block!important}.content-wrapper{max-width:800px;margin:0 auto;background:var(--color-bg-secondary);padding:var(--spacing-xl);border-radius:var(--border-radius-lg);border:1px solid rgba(255,255,255,.05)}.page-title{font-size:2.5rem;margin-bottom:2rem;background:linear-gradient(135deg,var(--color-accent-primary),var(--color-accent-secondary));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.content-section{margin-bottom:3rem}.content-section h2{font-size:1.5rem;margin-bottom:1rem;color:var(--color-text-primary);border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:.5rem}.content-section p{color:var(--color-text-secondary);line-height:1.6;margin-bottom:1rem}.tech-list{list-style:none;padding:0}.tech-list li{margin-bottom:.8rem;padding-left:1.5rem;position:relative;color:var(--color-text-secondary)}.tech-list li:before{content:"▹";position:absolute;left:0;color:var(--color-accent-secondary)}strong{color:var(--color-text-primary)}.faq-grid{display:grid;gap:2rem}.faq-item h3{font-size:1.2rem;color:var(--color-text-primary);margin-bottom:.5rem}.faq-item p{color:var(--color-text-secondary);line-height:1.6}@media(max-width:768px){.app-container{padding:var(--spacing-sm);padding-top:0!important}.content-page{padding-top:0!important;padding-left:1rem;padding-right:1rem}.app-header{display:none}.main-content{padding:.5rem;gap:.5rem}.controls-section{flex-direction:column;align-items:stretch;gap:.5rem}.controls-section>div:not(.audio-player){flex:1;justify-content:center}.control-group{justify-content:center}.audio-player{flex-direction:column;align-items:stretch;gap:.5rem;min-width:0}.play-button{width:100%}.mode-button{padding:.5rem;flex:1;text-align:center}}